Accession Number : AD0765392

Title :   Environmental Testing of Closed Pore Insulation (CPI), III - Rain Erosion Testing.

Descriptive Note : Research memo.,

Corporate Author : GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT

Personal Author(s) : Russak,Michael A.

Report Date : JUL 1973

Pagination or Media Count : 29

Abstract : The report details the results of simulated rain erosion testing done on Grumman's CPI (Closed Pore Insulation) material to further demonstrate its suitability as a viable TPS material for NASA's shuttle orbiter. This program was done to assess the resistance of CPI to damage from rain that may be encountered during landing maneuvers following re-entry. This work indicated that while CPI was subject to some weight loss due to erosion, the material remained essentially waterproof during and after exposure, thus avoiding severe heat shield degradation due to excessive water pickup. (Author)

Descriptors :   (*RAINDROPS, EROSION), (*HEAT SHIELDS, WATER IMPINGEMENT), (*MANNED SPACECRAFT, ATMOSPHERE ENTRY), THERMAL INSULATION, FIBERS, TEST METHODS, MOISTUREPROOFING, ANGLE OF ATTACK

Subject Categories : Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE